​Raju's age after 30 years will be 2 times his age 4 years ago. The present age of Raju is:

Correct option is C

​Given:

$$\text{Raju's age after 30 years} = 2 \times \text{(Raju's age 4 years ago)}$$​

Solution:

Let Raju's present age be x:

​$$x + 30 = 2(x - 4)$$ 

​$$x + 30 = 2x - 8 \\ \ \\ \Rightarrow \quad x = 38$$ 

Then, Raju's present age is 38 years